07690493 is referenced by 2 patents and cites 33 patents.

Systems and methods to facilitate the cleaning of arenas, such as stadiums having different seating levels. Pivotable bins can collect and funnel trash from different levels such as the concourse level. A series of tubes or chutes can be fixed to the arena structural undercarriage. Approximately 24″ diameter tubes can be used to funnel trash from the bins located on perimeter arena walkways to receptacle containers, recycling containers at ground levels, and even refuse removal trucks. The chutes and tubes can be located adjacent to walkway aisles on different levels of the arena. The chutes/tubes can be vertically oriented and/or be inclined as long as refuse can move down the chutes by gravity. Grates can be also used beneath the bins. And locks can further provide safety.

Title
Debris removal system and method for stadiums and arenas
Application Number
11/580819
Publication Number
7690493 (B1)
Application Date
October 13, 2006
Publication Date
April 6, 2010
Inventor
Richard A Nunis
Windermere
FL, US
Agent
Law Offices of Brian S Steinberger P A
Brian S Steinberger
Assignee
University of Central Florida Research Foundation
FL, US
IPC
B65G 11/00
B65F 1/00
G09F 23/00
B65F 1/14
E04H 3/10
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